NGC 3923 is an elliptical galaxy located in the constellation Hydra. It is located at a distance of about 90 million light years from Earth, which, given its apparent dimensions, means that NGC 3923 is about 155,000 light years across.

NGC 3923是殼層星系的一個例子，它星系暈中的恆星層層排列著。 NGC 3923擁有的層層多達42個，是所有殼層星系中數量最多的 [3]，而且它的殼層比其它的殼層星系要微妙得多。 這個星系的殼層是對稱的，而其它星系的殼層都較為傾斜。 恆星圍繞著星系的同心殼層是很常見的，在許多的橢圓星系中都觀察得到。 事實上，每10個橢圓星系就會又一個呈現出這種洋蔥狀的結構，而這在螺旋星系中從未觀測到。 這種殼層狀結構被認為是當一個較大的星系吞噬一個較小的衛星星 …

2015年5月15日 · The glowing object in this Hubble Space Telescope image is an elliptical galaxy called NGC 3923. It is located over 90 million light-years away in the constellation of Hydra. NGC 3923 is an example of a shell galaxy where the stars in its halo are arranged in layers.

The symmetrical, onion-like layers of shell galaxy NGC 3923 are showcased in this galaxy-rich image (zoom in here!) taken by the US Department of Energy’s (DOE) Dark Energy Camera mounted on the National Science Foundation’s (NSF) Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory in Chile, a Program of NSF NOIRLab.

2023年10月10日 · The glowing object in this Hubble Space Telescope image is an elliptical galaxy called NGC 3923. It is located over 90 million light-years away in the constellation of Hydra.

2015年5月15日 · The glowing object in this Hubble Space Telescope image is an elliptical galaxy called NGC 3923. It is located over 90 million light-years away in the constellation of Hydra. NGC 3923 is an...

2023年9月29日 · 这种类型的星系的一个突出例子是NGC 3923，它的洋葱状层在这张用美国能源部建造的暗能量相机（DECam）在Cerro Tololo美洲天文台（CTIO）的Víctor M. Blanco 4米望远镜上拍摄的图像中精美地展示，这是NSF的NOIRLab的一个项目。

2015年5月26日 · The elliptical galaxy NGC 3923 is known to be surrounded by a number of stellar shells, probable remnants of an accreted galaxy. Despite its uniqueness, the deepest images of its outskirts come from the 1980s. On the basis of the modified Newtonian dynamics (MOND), it has recently been predicted that a new shell lies in this region. Aims.

NGC 3923 是位于 长蛇座 的一个 椭圆星系。 它距离地球约9,000万 光年，考虑到它的视尺寸，这意味著NGC 3923的真实直径约为155,000光年。 NGC 3923是壳层星系的一个例子，在它的星系晕中的恒星是层层排列的。 它有超过20层的壳层 [2]。 它是 威廉·赫歇尔 在1791年3月7日由发现的。 NGC 3923是壳层星系的一个例子，它星系晕中的恒星层层排列著。 NGC 3923拥有的层层多达42个，是所有壳层星系中数量最多的 [3]，而且它的壳层比其它的壳层星系要微妙得多。 这个 …

NGC 3923 is a Elliptical Galaxy located in the constellation of Hydra in the equatorial region. NGC 3923's distance from Earth is 70,335,622.85 light years. NGC 3923 is called NGC 3923 in the New General Catalogue (NGC).